Disk allocation recommendation

[4ntech]

Hello everyone, 

I need some recommendations on how to setup my disks for Unraid using ZFS. 
Following is the hardware information:

Ryzen 7 5700U

32GB RAM

2x 500GB M.2 NVME Gen3x4 (970 EVO Plus)

2x 1TB SATA SSD (870 EVO)

I’m planning to run at least 2 VM, maybe docker containers, PieHole, and file shares. 
 

with that being said 1TB will be used for data, not sure how to make a optimum use out of NVME drives. I want to use ZFS mirror pool for redundancy not sure if I’m using the correct terminology, but protecting against drive failures. 
 

im also planning to add USB 3.2 external drive for backups. 
 

Thank you and appreciate the feedback. 
sorry, if I submitted this topic in a incorrect channel.